KR102318760B1 - Air circulation apparatus and method for controlling same - Google Patents

Abstract

The present invention relates to an air ventilation device and a method for controlling the same. More particularly, according to an embodiment of the present invention, it may provide an air ventilation device comprising: an air circulator; an air distributor including a plurality of blower dampers for controlling an amount of blown air supplied from the air circulator to a plurality of rooms; an exhaust diffuser unit including an exhaust diffuser for sucking air in the room, and an air sensor provided in the exhaust diffuser to measure air pollution in the room; and a controller for controlling the blower damper based on a reference value input in advance. The exhaust diffuser unit is provided in plurality, and the controller controls the blower damper based on the concentrated mode.

Description

AIR CIRCULATION APPARATUS AND METHOD FOR CONTROLLING SAME

The present invention relates to an air ventilation device and a method for controlling the same.

In recent years, as air pollution has become severe, modern people are exposed to a lot of fine dust. In addition, people are being exposed to fine dust not only in the external environment, but also in the indoor activity space at home and at work. Fine dust causes various respiratory diseases in humans, and in severe cases, cancer.

In order to escape from such fine dust, research on means for purifying indoor air has been constantly increasing. Meanwhile, not only fine dust, but also high concentrations of carbon dioxide and volatile organic compounds that can cause various diseases exist indoors. In order to comprehensively remove such fine dust and various pollutants, it is necessary to circulate the outside air and the indoor air.

In recent years, research on air ventilation devices for circulating external air and indoor air with each other is a trend that is constantly increasing.

In general, an air ventilator is operated to circulate air once every predetermined time. As such, when the air is circulated periodically once every predetermined time, there is a problem in that it is difficult to actively respond even if the concentration of contaminants is high in a specific space in the room. In addition, even if the air ventilator can be operated manually by the user, if the pollutants are odorless or invisible, there is a problem in that the user has to wait for the air circulation cycle of the air ventilator.

An embodiment of the present invention was invented in view of the above background, and it is intended to provide an air ventilator in which the user can visually check the air pollution level for each room.

Another object of the present invention is to provide an air ventilation device that intensively circulates air in a room having a relatively high degree of air pollution according to the degree of air pollution of each of the plurality of rooms.

According to one aspect of the present invention, an air circulator; an air distributor including a plurality of blow dampers for controlling an amount of blown air supplied from the air circulator to a plurality of rooms; an exhaust diffuser unit including an exhaust diffuser for sucking air in the room, and an air sensor provided in the exhaust diffuser to measure air pollution in the room; and a controller for controlling the blower damper based on a reference value input in advance, wherein the exhaust diffuser unit is provided in plurality, the controller controls the blower damper based on a concentration mode, and the controller controls the blower damper based on the concentration mode. In, compare a plurality of air pollution degrees measured through the air sensor of the plurality of exhaust diffuser units with the reference value, and when at least one of the plurality of air pollution degrees is greater than or equal to the reference value, the plurality of air pollution degrees Air pollution degree is selected as a first predetermined number of two or more according to the order of priority, air is sucked through the exhaust diffuser unit in which the selected air pollution degree is measured, and the remaining air pollution degree of a lower rank than the selected air pollution degree is measured An air ventilation device may be provided that controls the blow damper so that air is not sucked through at least a part of the exhaust diffuser unit, and the controller determines the rank of the air pollution degree to be higher as the value of the air pollution degree is higher have.

In addition, a plurality of the exhaust diffuser unit is disposed in each of the plurality of rooms, an air ventilation device may be provided.

In addition, in the concentration mode, when the air pollution degree of the number exceeding the first predetermined number among the plurality of air pollution degrees is equal to or greater than the reference value, the controller is configured to perform a second predetermined The air pollution degree is selected as the number, and air is sucked through the exhaust diffuser unit in which the selected air pollution degree is measured, and air is discharged through at least a part of the exhaust diffuser unit in which the remaining air pollution degree of the remaining air pollution degree lower than the selected air pollution degree is measured. Control the blow damper so as not to be sucked, the second predetermined number is greater than the first predetermined number, an air ventilation device may be provided.

In addition, the controller controls the blower damper based on a normal mode, and the controller blows the air so that in the normal mode, when the plurality of air pollution levels are less than the reference value, air is sucked through the plurality of exhaust diffuser units. An air ventilation device for controlling the damper may be provided.

In addition, the controller controls the blower damper based on the auto mode, and the controller controls the blow damper so that in the auto mode, when the plurality of air pollution levels are less than the reference value, the concentrated mode is switched to the normal mode. Controlling, air ventilation may be provided.

In addition, the air ventilation device may be provided, further comprising an input unit capable of receiving one of the general mode, the concentrated mode and the auto mode from the user.

In addition, the air circulator includes a blowing fan for blowing air to the air distributor and an exhaust fan for discharging air from the air distributor to the outside, and the air distributor includes a plurality of air distributors for controlling the amount of exhaust air supplied to the air circulator. Further comprising an exhaust damper, the air circulator further comprises an exhaust sensor for measuring the exhaust air pollution degree of the air discharged from the air distributor, the controller, the exhaust based on the exhaust air pollution degree measured by the exhaust sensor An air ventilation device may be provided for controlling the blowing fan, the exhaust fan, the blowing damper and the exhaust damper so that the blowing air amount and the exhaust air amount increase as the air pollution degree increases.

In addition, the air sensor and the exhaust sensor may be provided with an air ventilation device capable of measuring one or more of the fine dust concentration, the amount of carbon dioxide and the volatile organic compound.

In addition, the air distributor further comprises a flow bracket to uniform the flow rate of the air supplied from the air circulator, the flow bracket, the first wing and a second wing spaced apart from the first wing along one direction Including, wherein the first wing has a curved shape in a direction shifting from the one direction, an air ventilation device may be provided.

In addition, the exhaust diffuser may include a pollution level display unit for displaying the air pollution level, and the pollution level display unit including an LED capable of displaying a plurality of states, an air ventilation device may be provided.

In addition, the air pollution level measuring step of measuring the air pollution level through the air sensors of the plurality of exhaust diffuser units; a comparison step of comparing the air pollution level measured in the air pollution level measurement step with a reference value; a ranking step of determining the ranking of the plurality of air pollution degrees when one or more of the plurality of air pollution degrees is greater than or equal to the reference value; a blow damper control step of selecting an air pollution degree as a first predetermined number of two or more according to a plurality of the air pollution degree rankings; and an air circulation step in which air is sucked through the exhaust diffuser unit in which the selected air pollution degree is measured, and air is not sucked through at least a part of the exhaust diffuser unit in which the remaining air pollution degree of the remaining air pollution level lower than the selected air pollution degree is measured. Including, the higher the value of the air pollution degree, the higher the ranking of the air pollution degree, the air ventilation device control method can be provided.

In addition, in the ranking step, when the number of air pollution degrees exceeding the first predetermined number among the plurality of air pollution degrees measured in the measuring step is equal to or greater than the reference value, the ranking of the plurality of air pollution degrees is determined, and the In the blowing damper control step, the air pollution degree is selected by a second predetermined number in the order of the plurality of air pollution degrees in the order of the highest, and in the air circulation step, air is sucked through the exhaust diffuser unit in which the selected air pollution degree is measured. , Air is not sucked through at least a part of the exhaust diffuser unit in which the remaining air pollution degree of the lower rank than the selected air pollution degree is measured, and the second predetermined number is greater than the first predetermined number, the air ventilation system control method is may be provided.

In addition, in the air circulation step, when the plurality of air pollution levels measured in the measuring step are less than the reference value, air is sucked through the plurality of exhaust diffuser units, an air ventilation device may be provided.

The air ventilation device according to an embodiment of the present invention has the effect that the user can actively cope with the pollution situation as the air pollution level for each room can be checked with the naked eye of the user.

In addition, the air ventilation device has an effect of intensively circulating air in a room having a relatively high air pollution degree according to the air pollution degree of each of the plurality of rooms.

In addition, the air ventilation device has an effect that the flow rate of the air supplied to the room becomes uniform.

1 is a view showing a state in which a blower diffuser and an exhaust diffuser unit of an air ventilation device according to an embodiment of the present invention are arranged in a plurality of rooms.
2 is a conceptual diagram showing an operation of the air ventilation device.
3 is a perspective view of an air distributor.
4 is an exploded perspective view of FIG. 3 .
FIG. 5 is a plan view of FIG. 3 .
6 is a perspective view of a flow bracket.
7 is a view showing the flow rate of air flowing into the air distributor provided with the flow bracket.
8 is a perspective view showing a state in which air is discharged from the blower diffuser.
9 is a perspective view illustrating a state in which air is sucked into the exhaust diffuser.
FIG. 10 is a cross-sectional view taken along line A-A' of FIG. 9 .
11 is a plan view of the exhaust diffuser of FIG. 9 .
12 is a flowchart schematically illustrating an air ventilation system control method.

Hereinafter, specific embodiments for implementing the technical idea of the present invention will be described in detail with reference to the drawings.

In addition, in the description of the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

In addition, when a component is referred to as 'discharge', 'flow', or 'supply' to another component, it may be directly discharged, flowed, or supplied to the other component, but it is understood that other components may exist in between. it should be

The terminology used herein is only used to describe specific embodiments and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise.

Also, terms including an ordinal number such as 1st, 2nd, etc. may be used to describe various components, but the components are not limited by these terms. These terms are used only for the purpose of distinguishing one component from another.

The meaning of "comprising," as used herein, specifies a particular characteristic, region, integer, step, operation, element and/or component, and other specific characteristic, region, integer, step, operation, element, component, and/or group. It does not exclude the existence or addition of

In addition, in the present specification, the expression of the upper part, the lower part, the upper surface, etc. is described with reference to the drawings in the drawings, and it is clarified in advance that it may be expressed differently if the direction of the corresponding object is changed.

Hereinafter, a detailed configuration of the air ventilation device 1 according to an embodiment of the present invention will be described with reference to the drawings.

Hereinafter, referring to FIGS. 1 and 2 , the air ventilator 1 according to an embodiment of the present invention can effectively ventilate the room based on the degree of contamination of the air in the room. The air ventilation device 1 can intensively ventilate a predetermined number of rooms having a relatively high degree of air pollution among a plurality of rooms. For example, when the air pollution level measured in the living room among a plurality of rooms (room 1, room 2, room 3, living room, and kitchen in FIG. 1) is measured above the reference value, the air ventilation device 1 may Next, a room with a high degree of air pollution (for example, a room 1 and a kitchen) may be intensively ventilated. In other words, when the air pollution level measured in one room is equal to or greater than the reference value, the number of rooms as many as the preset number of rooms may be intensively ventilated, and the remaining rooms may not be ventilated. This circulation method will be described in detail in the controller 500 . The air ventilation device 1 may include an air circulator 100 , an air distributor 200 , a blower diffuser 300 , an exhaust diffuser unit 400 , a controller 500 , and an input device 600 .

The air circulator 100 may discharge air in the room to the outside through the exhaust port o, or may introduce outside air into the room through the inlet port i. The air circulator 100 includes a total heat exchange element 110 , an external air filter 120 , an exhaust air filter 130 , a blower fan 140 , an exhaust fan 150 , a circulator case 160 , and an exhaust sensor 170 . ) may be included.

The total heat exchange element 110 may allow heat exchange between the air discharged from the room and the outside air. The total heat exchange element 110 may prevent a temperature difference between the air supplied to the room and the air discharged from the room from increasing. For example, if the air in the room is ventilated in winter when the outside temperature is low, the temperature in the room is sharply lowered, which may increase the burden on heating costs. can have an effect.

The external air filter 120 may filter contaminants included in the air introduced from the external environment. The external air filter 120 may be, for example, a filter having a plurality of filter layers including a HEPA filter. The external air filter 120 may be disposed adjacent to the inlet (i) inside the circulator case 160 .

The exhaust air filter 130 may filter contaminants contained in the air in the room. The exhaust air filter 130 may include, for example, a pre-filter. The exhaust air filter 130 may be disposed adjacent to the air distributor 200 inside the circulator case 160 .

The blowing fan 140 may supply external air to the air distributor 200 . The blowing fan 140 may supply external air that has passed through the total heat exchange element 110 to the air distributor 200 . The blowing fan 140 may be, for example, a centrifugal fan. In addition, the blowing fan 140 may control the amount of air supplied by the controller 500 .

The exhaust fan 150 may discharge the sucked air in the chamber to the outside. The exhaust fan 150 may discharge the air in the room that has passed through the total heat exchange element 110 to the outside. The exhaust fan 150 may be, for example, a centrifugal fan. In addition, the exhaust fan 150 may control the amount of air discharged by the controller 500 .

The circulator case 160 is a case surrounding the total heat exchange element 110 , the external air filter 120 , the exhaust air filter 130 , the blowing fan 140 , the exhaust fan 150 , and the exhaust sensor 170 . can One side of the circulator case 160 may be provided with an inlet (i) and an exhaust port (o).

The exhaust sensor 170 may measure the exhaust air pollution degree of the air discharged from the air distributor 200 . In other words, the exhaust sensor 170 may measure the exhaust air pollution level of the mixed air discharged from the plurality of rooms. The exhaust sensor 170 may measure the concentration of fine dust, the amount of carbon dioxide, and volatile organic compounds in the air discharged from the air distributor 200 . The exhaust sensor 170 may be disposed in the circulator case 160 so as to be adjacent to the air distributor 200 .

3 to 5 , the air distributor 200 may supply the air supplied from the air circulator 100 to a plurality of rooms. In other words, the air distributor 200 may receive external air from the blowing fan 140 . The air distributor 200 may include an air supply port 210 , a blower damper 220 , an air outlet 230 , an exhaust damper 240 , a flow bracket 250 , and a distributor case 260 .

The air supply port 210 may provide a passage through which external air is supplied to the chamber. For example, the air supply port 210 may be a duct connected between one side of the distributor case 260 and the blower diffuser 300 . A plurality of such air supply ports 210 may be provided. For example, a plurality of air supply ports 210 may be provided to correspond to a plurality of seals, respectively.

The blower damper 220 may adjust the amount of blown air supplied from the air circulator 100 to a plurality of chambers. A plurality of such blow dampers 220 may be provided to independently open and close the plurality of air supply ports 210 . For example, when the blow damper 220 opens the air supply port 210 , external air may be supplied to a chamber corresponding to the opened air supply port 210 . In addition, when the blow damper 220 closes the air supply port 210 , the supply of external air to the seal corresponding to the closed air supply port 210 may be blocked. This blower damper 220 may be controlled by the controller 500 .

The air outlet 230 may provide a passage for the air in the chamber to be discharged to the outside. For example, the air outlet 230 may provide a passage through which the air in the plurality of rooms is discharged in a mixed state. The air outlet 230 may be a duct connected between one side of the distributor case 260 and an exhaust diffuser 410 to be described later. One or more of these air outlets may be provided.

The exhaust damper 240 may adjust the amount of exhaust air supplied to the air circulator 100 from a plurality of chambers. The exhaust damper 240 may be provided at one or more air outlets 230 . The exhaust damper 240 may adjust the amount of exhaust air to increase or decrease the flow rate of the exhaust air flowing through the air exhaust port 230 . This exhaust damper 240 may be controlled by the controller 500 .

Referring further to FIG. 6 , the flow bracket 250 may uniform the flow rate of the air supplied from the blowing fan 140 of the air circulator 100 . For example, the flow rate of air supplied from the blower fan 140 , which is a centrifugal fan, to the flow space 260a to be described later of the distributor case 260 may be non-uniform. In other words, the flow rate of one side of the air outlet and the flow rate of the other side of the blowing fan 140 may be different from each other. This flow bracket 250 may be disposed adjacent to the lower end of the flow space (260a).

Referring further to FIG. 7 , when the flow bracket 250 is disposed in the distributor case 260 , air having a non-uniform flow rate passes through the flow bracket 250 and is uniformly supplied to the plurality of air supply ports 210 . can be As the color of the arrow in FIG. 8 goes from red to green, it means that the hydraulic pressure of the air decreases, and the number of arrows means the flow rate. Based on the meaning of these arrows, when the flow bracket 250 is provided, the flow rate and hydraulic pressure of the air supplied to the plurality of air supply ports 210 may be uniform. The flow bracket 250 may include a first wing 251 and a second wing 252 .

One or more first wings 251 may be arranged to be spaced apart along one direction. The first wing 251 may have a curved shape in a direction shifting from one direction. For example, the first wing 251 may have a shape concavely curved in one direction. A flow rate per unit area of air passing through the space f between the plurality of first wings 251 may be uniform.

One or more second wings 252 may be provided and arranged along one direction. The second wing 252 may be disposed to be spaced apart from the first wing 251 . Also, the second wing 252 may have a shape different from that of the first wing 251 . For example, the second wing 252 may have a rectangular shape extending in a direction shifting from one direction.

The distributor case 260 may provide a flow space 260a for the air supplied from the air circulator 100 to flow therein. In addition, the distributor case 260 may communicate with the air circulator 100 , the air supply port 210 , and the air outlet port 230 .

The flow space 260a is a space for the air supplied from the blowing fan 140 to flow. The flow space 260a may have a shape in which the cross-sectional area increases from the bottom to the top. In addition, the upper end of the flow space 260a may communicate with the air supply port 210 , and the lower end of the flow space 260a may communicate with the air circulator 100 .

Referring further to FIG. 8 , the blower diffuser 300 may blow outside air into the room. The blower diffuser 300 may include a blower body 310 , a blow rate display unit 320 , and an air blower 330 .

The blower body 310 may be disposed on the ceiling or the like in the room. At one side of the blowing body 310, the blowing air amount display unit 320 may be disposed.

The air volume display unit 320 may display the amount of air blown from the air outlet 330 . Through the air flow display unit 320, the user can visually recognize the amount of air blown from the air outlet 330 with the naked eye. For example, the airflow amount display unit 320 may include an LED whose color changes according to the airflow amount. As a more detailed example, the airflow amount display unit 320 may display a plurality of colors changed to each other according to the range of the airflow amount.

The air outlet 330 may be formed in the air blower body 310 so that the air supplied from the air supply port 210 is discharged into the room. The color of the LED of the air flow display unit 320 may be changed based on the flow rate of the air passing through the air outlet 330 .

9 and 11 , a plurality of exhaust diffuser units 400 may be provided. For example, the plurality of exhaust diffuser units 400 may be provided in each of the plurality of rooms. The exhaust diffuser unit 400 may include an exhaust diffuser 410 and an air sensor 420 .

The exhaust diffuser 410 may be disposed adjacent to the blower diffuser 300 to suck air in the room. The air sucked in from the exhaust diffuser 410 may be supplied to the air outlet 230 . In addition, the exhaust diffuser 410 may be disposed on the ceiling or the like in the room. The exhaust diffuser 410 may include a flange part 411 , a pollution level display part 412 , an air intake port 413 , a passage part 414 , and a guide part 415 .

The flange portion 411 may provide a space in which the substrate S can be accommodated. The substrate S may be, for example, a PCB. This flange portion 411 may have an annular ring shape. The flange portion 411 may provide a space in which a substrate having an annular ring shape (eg, a donut shape) can be accommodated.

The pollution level display unit 412 may display the air pollution level of the air sucked in from the air intake port 413 . For example, the pollution level display unit 412 may display the air pollution level of the air sucked in from the air intake port 413 based on the information measured by the air sensor 420 . Through this pollution level display unit 412, the user can visually recognize the air pollution level of the air sucked from the air intake port 413. For example, the pollution level display unit 412 may include an LED whose color changes according to the air pollution level. As a more detailed example, a plurality of colors may be changed and displayed on the pollution level display unit 412 according to the range of the air pollution level.

The air intake port 413 may be a space provided by the flange portion 411 and the guide portion 415 . In other words, the air intake port 413 may be a space surrounded by the flange portion 411 and the guide portion 415 . Air in the room may be sucked into the air inlet 413 .

The passage part 414 may be connected to the flange part 411 in the vertical direction. The passage portion 414 may have a hollow cylindrical shape. The air sensor 420 may be accommodated in the hollow of the passage 414 .

The guide part 415 may provide a flow path through which the air sucked together with the flange part 411 flows. The guide part 415 may be disposed to be spaced apart from the flange part 411 by a predetermined distance. In addition, the guide portion 415 may have a shape in which the circumference becomes smaller toward the upper side. For example, the guide part 415 may have a shape in which the circumference becomes smaller toward the upper side.

The air sensor 420 may measure the degree of air pollution in the room. The air pollution level measured by the air sensor 420 may include fine dust concentration, carbon dioxide amount, volatile organic compounds, and the like. The air sensor 420 is provided for each of the plurality of rooms, and can independently measure the degree of air pollution in the plurality of rooms. As such, as the air sensor 420 is provided for each room, it is possible to preferentially ventilate a room with a relatively high degree of air pollution.

The air sensor 420 may be disposed on one side of the hollow formed in the passage 414 . The air sensor 420 may be disposed above the upper end of the guide unit 415 .

The controller 500 may control the blowing fan 140 , the exhaust fan 150 , the blowing damper 220 , and the exhaust damper 240 . A reference value, which is a criterion for determining whether air pollution is present, may be input to the controller 500 in advance. The controller 500 may compare a plurality of air pollution levels with a reference value through the air sensors 420 of the plurality of exhaust diffuser units 400 . Such a controller 500 may determine the ranking of the air pollution degree. For example, the controller 500 may determine that the higher the air pollution degree value, the higher the air pollution degree rank.

The controller 500 may control the blower damper 220 based on one of a normal mode, a concentrated mode, and an auto mode.

The controller 500 may control the blow damper 220 based on the normal mode. The controller 500 may control the blow damper 220 so that air is sucked through the plurality of exhaust diffuser units 400 when the plurality of air pollution levels are less than the reference value in the normal mode. In other words, the controller 500 may control the blower damper 220 to blow air into the plurality of rooms, and the blown air may be sucked through the plurality of exhaust diffuser units 400 . For example, if the air pollution level measured in all of the plurality of rooms in the general mode is less than the reference value, the controller 500 may control the blower damper 220 so that air is sucked from all of the plurality of exhaust diffuser units 400 . . In other words, when the air pollution level measured in all of the plurality of rooms is less than the reference value, the controller 500 may control the blower damper 220 so that air is circulated in all rooms without being concentrated in any one room.

When one or more of the plurality of air pollution degrees is greater than or equal to the reference value in the centralized mode, the controller 500 may select the air pollution degree as a first predetermined number of two or more in the order of the highest air pollution degree. The controller 500 receives air through the exhaust diffuser unit 400 in which the selected air pollution degree is measured, and at least a part of the exhaust diffuser unit 400 in which the remaining air pollution degree of a lower rank than the selected air pollution degree is measured. For example, it is possible to control the blower damper 220 so that air is not sucked through the rest of the order lower than the selected air pollution degree).

Hereinafter, a case in which the air ventilation device 1 is configured such that the exhaust diffuser unit 400 is installed in each of the six rooms will be described. For example, when one to three air pollution degrees out of six air pollution degrees are greater than or equal to a reference value in the concentrated mode, the controller 500 sets three (first predetermined number) air pollution degrees in the order of the highest air pollution degrees. You can choose. This controller 500 allows air to be intensively sucked from the exhaust diffuser unit 400 in which three selected air pollution degrees are measured, and air is not sucked in the exhaust diffuser unit 400 in which the remaining three unselected low-ranking ones are measured. It is possible to control the blow damper 220 to prevent it.

Referring back to FIG. 1 , when it is measured that the air pollution degree of the kitchen is greater than or equal to the reference value and the order of the highest air pollution degree is sequentially measured as kitchen, room 1, and room 2, the controller 500 controls the kitchen, room 1, and room. The blower damper 220 may be controlled so that air is intensively sucked from the exhaust diffuser unit 400 of No. 2, and air is not sucked from the exhaust diffuser unit 400 of the living room and room 3. In addition, the number of air pollution degrees greater than or equal to the reference value may be freely set, and the number of air pollution degrees selected in the order of the highest air pollution degrees may also be freely set.

The controller 500 may select a preset number of air pollution degrees when the number of air pollution degrees greater than or equal to the reference value among the plurality of air pollution degrees is greater than or equal to a preset number. For example, when the predetermined number of the controller 500 is three and the number of air pollution degrees above the reference value is measured to be four, the controller 500 may intensively suck in air from the exhaust diffuser unit 400 in which four air pollution degrees are measured. It is possible to control the blow damper 220 .

The controller 500 may control the blower damper 220 to switch between the concentrated mode and the normal mode based on a plurality of air pollution levels in the auto mode.

For example, when the plurality of air pollution levels in the auto mode are less than the reference value, the controller 500 may control the blower damper 220 so that the concentrated mode is switched to the normal mode. In other words, in the auto mode, when the total air pollution level is less than the reference value, the concentrated mode can be switched to the normal mode so that air is evenly circulated in all rooms.

The controller 500 may control the blowing fan 140 , the exhaust fan 150 , the blowing damper 220 , and the exhaust damper 240 based on the exhaust air pollution level measured by the exhaust sensor 170 . For example, the controller 500 controls the blowing fan 140, the exhaust fan 150, the blowing damper 220 and the exhaust so that the blowing air amount and the exhaust air amount increase as the exhaust air pollution level measured by the exhaust sensor 170 increases. The damper 240 may be controlled. In other words, the amount of air generated by the blowing fan 140 and the exhaust fan 150 may vary according to the degree of contamination of the exhaust air sucked from the plurality of rooms and mixed with the exhaust air.

The input device 600 may receive one of a normal mode, a concentrated mode, and an auto mode from a user. In addition, the input device 600 may receive a thread to be ventilated by the user among the plurality of rooms. For example, when a user's desired thread is input to the input device 600 and the user inputs an intensive mode, the user's desired thread may be intensively ventilated.

Hereinafter, the operation and effect of the air ventilation device 1 according to the first embodiment of the present invention will be described.

The air ventilator 1 may selectively ventilate each of the plurality of rooms based on a preset reference value. For example, when the air pollution level measured by any one of the air sensors 420 of the plurality of rooms is greater than or equal to the reference value, the air pollution degree ranking of the plurality of rooms may be determined. Among the determined ranks, n (n>2) rooms are intensively ventilated in the order of priority, and ventilation may not be performed in the remaining rooms except for n rooms among the plurality of rooms (concentrated mode).

In addition, the air ventilator 1 can be ventilated in all of the plurality of rooms when the air pollution degree of all of the plurality of rooms is measured to be less than the reference value (normal mode).

In addition, the air ventilation device 1 is ventilated in the entire plurality of rooms in the general mode, and when the air pollution level measured by any one of the air sensors 420 of the plurality of rooms is measured above the reference value, it is converted to the concentrated mode. Can (auto mode). In addition, the air ventilator 1 may be ventilated in a predetermined number of rooms in the concentrated mode, and may be switched to the concentrated mode when the air pollution level of all of the plurality of rooms is measured to be less than the reference value (auto mode).

In addition, the air ventilation device 1 through the input device 600, the user can select the general mode or the concentration mode regardless of the air pollution degree. In other words, the user may arbitrarily determine the desired ventilation mode through the input device (600).

As the air ventilation device 1 intensively ventilates a room requiring ventilation, it is possible to prevent wastage of electric power by ventilating to a room that does not require ventilation.

In addition, the air ventilator 1 can prevent air pollution of a predetermined number of rooms from being left in an excessively high state through the auto mode.

12, the air ventilation device control method (S10) is an air pollution measurement step (S100), a comparison step (S200), a ranking step (S300), a blow damper control step (S400), an air circulation step (S500) ) may be included.

In the air pollution level measurement step ( S100 ), the air pollution level may be measured through the air sensors 420 of the plurality of exhaust diffuser units 400 .

In the comparison step (S200), the air pollution degree measured in the air pollution degree measurement step (S100) may be compared with a reference value. This comparison step (S200) may be performed after the air pollution level measurement step (S100).

In the ranking step (S300), when one or more of the plurality of air pollution degrees is greater than or equal to the reference value, the ranking of the plurality of air pollution degrees may be determined.

In the blowing damper control step (S400), a predetermined number of air pollution degrees of two or more may be selected according to the order of the air pollution degree ranking. This blowing damper control step (S400) may be performed after the ranking step (S300).

In the air circulation step (S500), air may be sucked through the exhaust diffuser unit (400) in which the air pollution level selected in the blowing damper control step (S400) is measured.

On the other hand, in addition to this configuration, according to the second embodiment of the present invention, when the air pollution degree exceeding the first predetermined number in the concentrated mode is equal to or greater than the reference value, the plurality of air pollution degrees according to the second embodiment of the present invention. The second predetermined number of air pollution levels may be selected. Hereinafter, referring again to FIG. 1, a second embodiment of the present invention will be described. In the description of the second embodiment, differences in comparison with the above-described embodiment will be mainly described, and the same description and reference numerals refer to the above-described embodiment.

The second predetermined number may be greater than the first predetermined number. For example, when the air pollution degree of the number exceeding the first predetermined number (for example, two out of six) in the concentration mode is equal to or greater than the reference value, the controller 500 may control the second predetermined number in the order of the highest air pollution degree. The number of air pollution levels (for example, 3 to 5 more than 2) may be selected. In other words, the controller 500 sucks air through the exhaust diffuser unit 400 in which the air pollution degree selected by the second predetermined number (eg, five) is measured, and the remaining air pollution degree lower than the selected air pollution degree. It is possible to control the blower damper 220 so that air is not sucked through at least a part of the exhaust diffuser unit 400 (for example, the entire remaining rank lower than the selected air pollution degree) of the measured exhaust diffuser unit 400 .

In addition, the controller 500 may determine the second predetermined number by grouping the plurality of air pollution degrees into a predetermined group when the first predetermined number of air pollution degrees among the plurality of air pollution degrees is equal to or greater than the reference value in the concentrated mode. For example, the controller 500 groups the three air pollution degrees into a first group according to the order of the air pollution degrees when the plurality of rooms is provided as 9 and the first predetermined number is, for example, 1 to 2 Thus, it is possible to control the blower damper so that air is sucked through the three exhaust diffuser units 400 in which the air pollution degree of the first group is measured.

In addition, when the first predetermined number is, for example, 3 to 5, the controller 500 sequentially sets six (second predetermined number) air pollution degrees to the first group and the second in the order of the highest air pollution degree. You can group by group. The controller 500 may control the blower damper so that air is sucked through the six exhaust diffuser units 400 in which the air pollution levels of the grouped first and second groups are measured.

In addition, when the first predetermined number is, for example, 6 to 8, the controller 500 sequentially groups the 9 air pollution degrees into a first group, a second group, and a third group according to the order of the air pollution degree being higher. can do. The controller 500 may control the blower damper so that air is sucked through the nine exhaust diffuser units 400 in which the air pollution levels of the grouped first group, the second group, and the third group are measured.

Although the embodiments of the present invention have been described as specific embodiments, these are merely examples, and the present invention is not limited thereto, and should be construed as having the widest scope according to the technical idea disclosed in the present specification. A person skilled in the art may implement a pattern of a shape not indicated by combining/substituting the disclosed embodiments, but this also does not depart from the scope of the present invention. In addition, those skilled in the art can easily change or modify the disclosed embodiments based on the present specification, and it is clear that such changes or modifications also fall within the scope of the present invention.

1: air ventilation device 100: air circulator
110: total heat exchange element 120: external air filter
130: exhaust air filter 140: fan for blowing
150: exhaust fan 160: circulatory case
170: exhaust sensor
200: air distributor 210: air supply port
220: blow damper 230: air outlet
240: exhaust damper 250: flow bracket
251: first wing 252: second wing
260: distributor case 260a: flow space
300: blow diffuser 310: blow body
320: air volume display unit 330: air vents
400: exhaust diffuser unit 410: exhaust diffuser
411: flange portion 412: pollution degree display portion
413: air intake 414: passage
415: guide unit
420: air sensor 500: controller
600: input method

Claims (13)

air circulator;
an air distributor including a plurality of blow dampers for controlling an amount of blown air supplied from the air circulator to a plurality of rooms;
an exhaust diffuser unit including an exhaust diffuser for sucking air in the room, and an air sensor provided in the exhaust diffuser to measure air pollution in the room; and
A controller for controlling the blow damper based on a reference value input in advance,
The exhaust diffuser unit is provided in plurality,
The controller controls the blower damper based on the concentrated mode,
The controller is in the concentration mode,
A plurality of air pollution degrees measured through the air sensor of the plurality of exhaust diffuser units are compared with the reference value, and when one or more of the plurality of air pollution degrees is higher than the reference value, the ranking of the plurality of air pollution degrees is The air pollution degree is selected as a first predetermined number of two or more in a high order, air is sucked through the exhaust diffuser unit in which the selected air pollution degree is measured, and the remaining air pollution degree of a lower rank than the selected air pollution degree is measured control the blower damper so that air is not sucked through at least a part of the exhaust diffuser unit;
The controller determines that the higher the value of the air pollution degree, the higher the ranking of the air pollution degree,
Among the plurality of air pollution degrees measured through the air sensor, the number of the air pollution degrees measured above the reference value includes a number less than or equal to the preset first predetermined number,
The controller is in the concentration mode,
When the number of air pollution degrees exceeding the first predetermined number among the plurality of air pollution degrees is equal to or greater than the reference value, a second predetermined number of air pollution degrees is selected according to the order of the plurality of air pollution degrees, and the selected Controls the blow damper so that air is sucked through the exhaust diffuser unit for which the air pollution degree is measured, and air is not sucked through at least a part of the exhaust diffuser unit for which the remaining air pollution degree of the remaining air pollution level lower than the selected air pollution degree is measured, and ,
the second predetermined number is greater than the first predetermined number;
air ventilation device. The method of claim 1,
A plurality of the exhaust diffuser unit is disposed in each of the plurality of rooms,
air ventilation device. delete The method of claim 1,
The controller controls the blow damper based on the general mode,
The controller is in the normal mode,
When the plurality of air pollution levels are less than the reference value, controlling the blow damper so that air is sucked through the plurality of exhaust diffuser units,
air ventilation device. 5. The method of claim 4,
The controller controls the blow damper based on the auto mode,
The controller is in the auto mode,
When the plurality of air pollution levels are less than the reference value, controlling the blow damper so that the concentration mode is switched to the general mode,
air ventilation device. 6. The method of claim 5,
Further comprising an input unit for receiving an input of one of the normal mode, the concentrated mode and the auto mode from a user,
air ventilation device. The method of claim 1,
The air circulator includes a fan for blowing air for blowing air to the air distributor and an exhaust fan for discharging air from the air distributor to the outside,
The air distributor further includes a plurality of exhaust dampers for controlling the amount of exhaust air supplied to the air circulator,
The air circulator further comprises an exhaust sensor for measuring the exhaust air pollution degree of the air discharged from the air distributor,
The controller is
Controlling the blowing fan, the exhaust fan, the blowing damper and the exhaust damper so that the blowing air amount and the exhaust air amount increase as the exhaust air pollution degree increases based on the exhaust air pollution degree measured by the exhaust sensor,
air ventilation device. 8. The method of claim 7,
The air sensor and the exhaust sensor can measure one or more of fine dust concentration, carbon dioxide amount, and volatile organic compounds,
air ventilation device. The method of claim 1,
The air distributor further includes a flow bracket for uniformizing the flow rate of the air supplied from the air circulator,
The flow bracket is
Including a first wing and a second wing spaced apart from the first wing in one direction,
The first wing has a curved shape in a direction shifting from the one direction,
air ventilation device. The method of claim 1,
The exhaust diffuser includes a pollution level display unit on which the air pollution level is displayed,
The pollution level display unit includes an LED capable of displaying a plurality of states,
air ventilation device. an air pollution level measurement step of measuring the air pollution level through the air sensors of the plurality of exhaust diffuser units;
a comparison step of comparing the air pollution level measured in the air pollution level measurement step with a reference value;
a ranking step of determining the ranking of the plurality of air pollution degrees when one or more of the plurality of air pollution degrees is greater than or equal to the reference value;
a blow damper control step of selecting an air pollution degree as a first predetermined number of two or more according to a plurality of the air pollution degree rankings; and
An air circulation step in which air is sucked through the exhaust diffuser unit in which the selected air pollution degree is measured, and air is not sucked through at least a part of the exhaust diffuser unit in which the remaining air pollution degree of the remaining air pollution level lower than the selected air pollution degree is measured. including,
The higher the value of the air pollution degree, the higher the ranking of the air pollution degree is determined,
Among the plurality of air pollution degrees measured through the air sensor, the number of the air pollution degrees measured above the reference value includes a number less than or equal to the preset first predetermined number,
The ranking step is
When the number of air pollution degrees exceeding the first predetermined number among the plurality of air pollution degrees measured in the measuring step is equal to or greater than the reference value, the ranking of the plurality of air pollution degrees is determined,
The blowing damper control step selects the air pollution degree by a second predetermined number in the order of the plurality of air pollution degrees in the order of the highest,
In the air circulation step,
Air is sucked in through the exhaust diffuser unit in which the selected air pollution degree is measured, and air is not sucked in through at least a part of the exhaust diffuser unit in which the remaining air pollution degree of the remaining air pollution degree lower than the selected air pollution degree is measured,
the second predetermined number is greater than the first predetermined number;
Air ventilation system control method. delete 12. The method of claim 11,
In the air circulation step,
When the plurality of air pollution levels measured in the measuring step are less than the reference value, air is sucked through the plurality of exhaust diffuser units,
Air ventilation system control method.

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